.clearfix::before,
.clearfix::after{
    content: "";
    display: block;
    height: 0;
    line-height: 0px;
    clear: both;
    visibility: hidden;
}
.sp_container{
    width: 100%;
    max-width: 640px;
    min-width:320px;
    /* height:2000px; */
    background: #eee;
    margin: 0 auto;
    overflow: hidden;
}
/* top */
.sp_top{
    width: 100%;
    height:80px;
    max-width: 640px;
    min-width: 320px;
    background: red;
    position: fixed;
    z-index: 999;
}
.sp_top a{
    width: 20%;
    display: block;
    color:#fff;
    position: absolute;
    top:50%;
    transform: translateY(-50%);
    left:10px;
}
.sp_top a i{
    font-weight: 700;
    color:#fff;
    font-size:36px; 
}
.sp_top h2{
    width: 80%;
    text-align: center;
    color:#fff;
    letter-spacing: 10px;
    font-size: 30px;
    position: absolute;
    bottom:-8%;
    left:10%;
}
@media screen and (max-width: 500px) {
    .sp_top h2{
         font-size: 24px;
    }
    .sp_top{
        height:60px;
    }
}
/* banner */
.sp_banner{
    width:100%;
    height:352px;
    max-width: 640px;
    min-width:320px;
    margin-top: 60px;
    background: url('../images/back.png') no-repeat;  
    overflow: hidden;
    position: relative;
    transition: all 0.
    /* vertical-align: bottom;   */
}
.sp_banner_info{
    padding:30px 30px;
    position: relative;  
}
 .sp_info{
    width:30%;
    float: left;
    margin-top: 10px;
}
.sp_info img{
    width: 100%;
}
.sp_text{
    width:65%;
    float: right;
    position: relative;
    box-sizing: border-box;
}
.sp_text p{
    width:100%;
    font-size: 22px;
    color:#666;
    transition: all 0.2s;
}
.sp_textImg{
    padding-top:20px;
    width:100%;
    transition: all 0.2s;
}
@media screen and (max-width: 500px) {
    .sp_banner{
         height:300px;
    }
    .sp_text p{
       font-size: 18px;
    }
    .sp_textImg{
       padding-top:0;
    }
    .sp_nav li p{
        font-size:16px;
    }
}
@media screen and (max-width: 430px) {
    .sp_banner{
        height:200px;
  }
    .sp_text p{
        font-size: 14px;
    }
    .sp_textImg{
        padding-top:-40px;
    }
    .sp_nav li p{
        font-size:12px;
    }
}
.sp_text a{
    width:12%;
    margin:10px 10px;
    float: left;
    border-radius: 10px;
    background: red;
}
.sp_text a img{
    width: 100%;
}
.sp_more{
    width:16%;
    position: absolute;
    right:-5%;
    top:36%;

}
.sp_more i{
    font-weight: 700;
    color:#fff;
    font-size:36px; 
} 
.sp_banner_bottom{
    width:100%;
    height:60px;
    background: rgba(0,0,0,.4);
    position: absolute;
    bottom:0;
    line-height: 10px;
    text-align: center;
}
.sp_banner_bottom li{
    width:32.7%;
    float: left;
    margin: 0 auto; 
}
.sp_banner_bottom .space{
    width:3px;
    height:46px;
    background: rgba(255, 255, 255, .6);
    border-radius:60%;
    margin-top: 10px;
}
.sp_banner_bottom li a{
    color:#fff;
}
.sp_banner_bottom li p{
    letter-spacing: 6px;
}
/* 导航栏 */
.sp_nav{
    width:100%;
    margin-top: 5px;
}
.sp_nav li{
    width: 33.33%;
    float: left;
    text-align: center;
    padding:5px 0;
    box-sizing:border-box;
}
.sp_nav li:nth-child(1),
.sp_nav li:nth-child(2),
.sp_nav li:nth-child(3),
.sp_nav li:nth-child(4),
.sp_nav li:nth-child(5),
.sp_nav li:nth-child(6){
    border-bottom: 1px solid #ccc;
}
.sp_nav li:nth-child(1),
.sp_nav li:nth-child(2),
.sp_nav li:nth-child(7),
.sp_nav li:nth-child(4),
.sp_nav li:nth-child(5),
.sp_nav li:nth-child(8){
    border-right:1px solid #ccc;
}
.sp_nav li a{
  /* width:50%; */
  display: block;
  color:#666;
}
.sp_nav li img{
    width:39px;
    display: inline-block;
}
.sp_nav li p{
    font-size: 16px;
    line-height: 15px;
}

/* 产品块 */
.sp_product{
    width:100%;
}
.sp_productLi{
    position: relative;
}
.sp_product a{
    display: inline-block;
    color:#666;
}
.sp_product a h3{
    margin-left: 50px;
}
.sp_product a h3::before{
    content:"";
    width:2px;
    height:18px;
    background: red;
    position: absolute;
    top:24px;
    left:25px;
}
.sp_product img{
    width: 100%;   
}
/* 固定底部 */
.sp_bottom{
    width: 100%;
    max-width: 640px;
    min-width: 320px;
    height:80px;
    background: #fff;
    position: fixed;
    margin: 0 auto;
    bottom:0;
}
.sp_bottom li{
    width: 25%;
    float: left;
    padding-top: 10px;
    text-align: center;
} 
.sp_bottom li a{
    color:#666;
}
.sp_bottom li i{
    font-size: 20px;
}
.sp_bottom .active a{
    color:red;
}